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Diffstat (limited to 'include/asm-mips/pgtable-32.h')
-rw-r--r--include/asm-mips/pgtable-32.h16
1 files changed, 3 insertions, 13 deletions
diff --git a/include/asm-mips/pgtable-32.h b/include/asm-mips/pgtable-32.h
index 2fbd47eba32..59c865deb0c 100644
--- a/include/asm-mips/pgtable-32.h
+++ b/include/asm-mips/pgtable-32.h
@@ -43,11 +43,7 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
*/
/* PGDIR_SHIFT determines what a third-level page table entry can map */
-#ifdef CONFIG_64BIT_PHYS_ADDR
-#define PGDIR_SHIFT 21
-#else
-#define PGDIR_SHIFT 22
-#endif
+#define PGDIR_SHIFT (2 * PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2)
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE-1))
@@ -55,17 +51,11 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
* Entries per page directory level: we use two-level, so
* we don't really have any PUD/PMD directory physically.
*/
-#ifdef CONFIG_64BIT_PHYS_ADDR
-#define PGD_ORDER 1
+#define __PGD_ORDER (32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2)
+#define PGD_ORDER (__PGD_ORDER >= 0 ? __PGD_ORDER : 0)
#define PUD_ORDER aieeee_attempt_to_allocate_pud
#define PMD_ORDER 1
#define PTE_ORDER 0
-#else
-#define PGD_ORDER 0
-#define PUD_ORDER aieeee_attempt_to_allocate_pud
-#define PMD_ORDER 1
-#define PTE_ORDER 0
-#endif
#define PTRS_PER_PGD ((PAGE_SIZE << PGD_ORDER) / sizeof(pgd_t))
#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))